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Matches 1 - 50 out of 33,025

Document Document Title
WO/2018/129831A1
A smart short circuit protection switch circuit for a modified wave inverter, comprising: a PFC boost unit (10), used for performing boost conversion of an inputted voltage; a short circuit switch unit (20), an input end thereof being co...  
WO/2018/131462A1
In order to balance safety and convenience when managing a power storage unit (3), a state determination circuit (22) determines the state of the power storage unit (3) on the basis of power storage unit (3) monitoring data. A state sign...  
WO/2018/130557A1
A DC power switching assembly (22) comprises a plurality of series connected power switching units (21). Each power switching unit (21, 45) comprises a first terminal (23) of the unit and a second terminal (24) of the unit, the terminals...  
WO/2018/129842A1
A pilot protection method for a transmission line of a new energy station based on current waveform similarity, comprising: mounting identical relay protection devices (M, N) respectively on sides M and N of a transmission line of the ne...  
WO/2018/124394A1
The present invention relates to a method for determining installation stability of a power source surge protector, comprising: a detection step of detecting, by a detection unit, a voltage between a phase and the ground and a voltage be...  
WO/2018/122632A1
The present invention relates to a method for detecting CT saturation during inrush. The method comprising, computing an estimated sampled value of a current signal from a CT at a first time instance using sampled values of the current s...  
WO/2018/120628A1
A protection circuit based on a choke transformer, comprising: a choke transformer (CT), an adapter (400), and a switch module (100). The switch module (100) comprises a first switch (S1) and a second switch (S2). When the second switch ...  
WO/2018/120054A1
Provided are a method and a control system for detecting faulted phases of transmission lines in an AC power system and a protective relay using the same. The method includes sampling electric signals at one end of the transmission lines...  
WO/2018/115818A1
A toroidal field coil comprising a central column, a plurality of return limbs, a quench protection system, and a cooling system. The central column comprises HTS material. Each return limb comprises a quenchable section, two HTS section...  
WO/2018/116906A1
In a microcomputer (23) of a power supply control device, an output circuit (42) outputs a PWM signal in the cases where a control unit (30) determines that the value of a switch current flowing via a semiconductor switch is lower than a...  
WO/2018/113388A1
Provided are a motor driving protection device, an over-voltage protection method and an inverter air conditioner. An over-voltage protection circuit (4) is added to the motor driving protection device. The over-voltage protection circui...  
WO/2018/114120A1
The invention concerns a protection arrangement (18) for a multiphase uninterruptible power supply system comprising a vacuum circuit breaker (S1a, S1b, S1c) connected in series with an inductive element (14), where the inductive element...  
WO/2018/115318A1
A power generation and distribution arrangement that includes at least three switchgear sections. Each switchgear includes at least one or more power generators and an internal busbar in which the one or more power generators are electri...  
WO/2018/113271A1
Provided is an adaptive impedance protection method for parallel capacitors, the method comprising monitoring terminal voltage and current of a capacitor; automatically calibrating, when the capacitor is put into operation, the initial i...  
WO/2018/114338A1
The invention concerns a protection arrangement (18) for an uninterruptible power supply system comprising at least one vacuum circuit breaker (BCB3, RBCB3) connected in series with an inductive element (Lr), the protection arrangement (...  
WO/2018/109688A1
Protection system (1) for an electrolytic capacitor (109) comprising a current divider (2) which can be inserted between the electrolytic capacitor (109) and the reference potential; the divider (2) comprises a first branch comprising a ...  
WO/2018/110027A1
A battery pack, provided with: a battery unit comprising one or a plurality of battery cells; a microcomputer for performing communication with the outside; a power supply terminal connected with the battery unit; a communication termina...  
WO/2018/107721A1
A driving control device and method for the yaw electromotors of a wind power generation set. The driving control device (400) comprises a frequency converter (410), a fault cut-out contactor (420), and a contactor (430); the frequency c...  
WO/2018/104486A1
A protective arrangement (20) for protecting electrical loads and the connection lines thereof from overcurrent is described. In this case, the protective arrangement has an input (E), at which an input current is supplied to the protect...  
WO/2018/102935A1
A method for performing a trip, when the number of times that a flexible DC control system is temporarily locked and then unlocked again exceeds a threshold. When a short-time fault occurs to the grid side AC system of an interconnection...  
WO/2018/105294A1
Provided is a light-emitting device capable of determining, in an unlit state, whether or not a ground fault has occurred, the determination not requiring the use of a shunt resistance. This light-emitting device (1) comprises: a current...  
WO/2018/106402A1
The present disclosure is directed to an apparatus (102, 300) for providing power to an outdoor unit (101) and suppressing undesired surge energy imposed on the apparatus (102, 300) from the outdoor unit (101). In one aspect of the prese...  
WO/2018/105989A1
A microgrid system, which is provided with a plurality of decentralized power sources, a plurality of decentralized subordinates, and paths connecting the decentralized power sources and subordinates, according to the present invention m...  
WO/2018/105990A1
A microgrid system according to the present invention is provided with: a plurality of decentralized power sources; a plurality of decentralized subordinates; paths connecting the decentralized power sources and subordinates; and a contr...  
WO/2018/104441A1
The invention relates to a low-voltage circuit breaker device (1) having at least one external conductor section (2) and a neutral conductor section (5), wherein the low-voltage circuit breaker device (1) has an electrical measurement ar...  
WO/2018/101012A1
A power supply control device (12) controls the supply of power, which is supplied via an electric wire (W1). A control unit of a microcomputer (23) periodically fetches an electric wire current value flowing in the electric wire (W1), a...  
WO/2018/099324A1
A power battery overcharge protection circuit and device, and a battery management system. The overcharge protection circuit comprises: a voltage detection circuit (10), used for detecting the voltage of a power battery; a temperature co...  
WO/2018/099357A1
An overcharge protection circuit and an overdischarge protection circuit for a power battery. The overcharge protection circuit comprises: a first voltage measurement circuit (10), the first voltage measurement circuit being connected to...  
WO/2018/099377A1
An aircraft, and over-voltage protection method and device for an electronic governor thereof. An electronic governor is used to control a motor. The method comprises the following steps: acquiring a direct current busbar voltage of an e...  
WO/2018/096727A1
This invention provides a monitoring system (10) comprising: a detection unit (11) that detects that a detection value related to a power storage system satisfies a condition; a specifying unit (12) that specifies the type of defect occu...  
WO/2018/097194A1
The electric working machine according to one aspect of the present disclosure is provided with a motor, a drive unit for driving the motor, a first control circuit, and a second control circuit. The first control circuit controls the dr...  
WO/2018/094862A1
Provided are a method for identifying a single pole ground fault in a VSC-DC power distribution network, and a single pole ground fault protection method for a VSC-DC power distribution network. The method comprises: acquiring voltages t...  
WO/2018/096930A1
An overvoltage protection device of a variable speed power generation system according to an embodiment of the present invention has: a detection means (27) for detecting that a prescribed event has occurred or that the event has not occ...  
WO/2018/095703A1
The present disclosure relates to a method of monitoring switching by an on-load tap changer (OLTC) (1) from a first contact (3a) to a second contact (3b) of a transformer winding (2). The method comprises measuring a voltage of the tran...  
WO/2018/092599A1
A power supply device equipped with battery packs having a plurality of battery cells, and voltage detection devices that detect the voltage of the battery cells. The battery pack has a plurality of battery modules formed by connecting i...  
WO/2018/091138A1
The present invention relates to electric drive devices having at least one power electronics module which comprises at least one voltage circuit having power electronics components such as a converter, transformer, frequency inverter, p...  
WO/2018/092563A1
In the present invention, a switch circuit interposed between electric wires connecting a plurality of batteries includes: a semiconductor switch for turning on or off the connection between the batteries; and a protection switch connect...  
WO/2018/093058A1
The present invention relates to a battery reverse voltage prevention system, and to a battery reverse voltage prevention system that can reduce opening and closing delay time of the existing P-channel MOSFET by connecting an additional ...  
WO/2018/092620A1
Provided is a battery monitoring device for a vehicle-mounted battery with which the voltage of each location in a battery module can be detected more accurately, and a circuit can be protected when overvoltage or overcurrent occurs. In ...  
WO/2018/091432A1
A safety device (130) for a drive controller (13) has an input unit (132) comprising a control signal block (135) in order to condition control signals received via secure inputs of the drive controller (13) and to provide said signals a...  
WO/2018/086927A1
The present disclosure relates to a DC power system (1), comprising: a main bus (3), a plurality of power delivery devices (G1-G8, 11-15) configured to be connected to the main bus (3), a first zone partitioning device (7a), and a contro...  
WO/2018/088111A1
A power supply control apparatus (50) is applied to a power source system provided with opening/closing parts (21, 22, 31, 32) which has: a plurality of serially connected switches (S1, S2) in paths (L1, L2) through which power from volt...  
WO/2018/089548A1
Flywheel based electrical energy management system and device. The device will often comprise at least one shaft mounted flywheel, each flywheel comprising a flywheel mass that contains a plurality of permanent magnets. The flywheel spin...  
WO/2018/087260A1
The invention relates to a power distributor (2), in particular for an on-board network (4) of a motor vehicle (6), having an intermediate tap (16), two power outputs (10), and one each switching unit (28) for each power output (10), and...  
WO/2018/084354A1
The present invention relates to a system for protecting a power system and a method for operating the same. In this regard, a system for protecting a power system according to the present invention is provided with a superconductive cab...  
WO/2018/085074A1
A motor protection relay including a housing and a printed circuit board disposed within the housing, the printed circuit board including a central processing unit and a wireless communication interface, the wireless communication interf...  
WO/2018/080385A1
A robotic vehicle (20) including processing circuitry (110) configured to receive power cord-information indicative of position-data of at least a portion of a power cord (28) operably coupled to the robotic vehicle (20), tension-data of...  
WO/2018/077027A1
Disclosed in the present invention is a low-voltage protection device for use in a storage battery, comprising: a primary power supply circuit, the primary power supply circuit being connected with the storage battery and a control syste...  
WO/2018/076904A1
A method for fault current limiting control and protection coordination for a converter operating in an isolated state in a flexible direct current power transmission system: a converter output current limiting command Imax for use in re...  
WO/2018/078327A1
A superconducting magnet comprising: a field coil comprising high temperature superconducting material and having a joint; a bypass resistance comprising a non-superconducting conductive material, wherein the bypass resistance is electri...  

Matches 1 - 50 out of 33,025